@Jono62 Sorry! I didn't see this last night. Had a huge falling out with the other half and ended up sleeping on the sofa. I noticed you lot were online, but I couldn't muster the enthusiasm to play anything. Just watched random videos until I fell asleep.

I very much doubt it. I think Splatoon 2 actually came out a year after support for the first game ended, but that was purely because Nintendo had a new console out and were trying to flesh out that first year with as many top-tier Nintendo games as possible. I don't think they have a reason to announce a Splatoon 3, really.

As I mentioned earlier, I honestly believe Splatoon will go the way of Mario Kart, Smash Bros and Animal Crossing; A one-per-console affair. I can't see that being any different, even if the next game offers a dramatic change in gameplay.

Edit - Having said that, I don't know why the Splatfests are coming to an end. They don't appear to require a lot of effort and there's plenty of subject matter they could use. They could even get away with using old splatfest maps over and over again.

One thing that will continue though, is weapon and map balancing. The original game was still getting that, even after developers said they were done with the game.